Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

103results about How to "Improve efficiency and stability" patented technology

Distributed metadata management method and system

The invention relates to a distributed metadata management method and system. The distributed metadata management method particularly includes the steps of carrying out storage: carrying out partition to form independent metadata nodes for storing metadata and independent user table nodes for storing user tables, adopting a plurality of metadata nodes to store multiple copies of the metadata, and forming main copy nodes and auxiliary copy nodes, wherein the same metadata are stored in the main copy nodes and the auxiliary copy nodes; carrying out verifying: carrying out data verification on the main copy nodes and the auxiliary copy nodes to guarantee that the metadata stored in the main copy nodes and the metadata stored in the auxiliary copy nodes are coincident; carrying out repairing: building monitoring rings based on the main copy nodes and the auxiliary copy nodes through the ZooKeeper technology, and when it is monitored that some main copy nodes or some auxiliary copy codes fail, triggering switching between the main copy nodes and the auxiliary copy nodes through the monitoring rings to achieve repairing of the failed nodes. The distributed metadata management system corresponds to the technical schemes of the distributed metadata management method in a one-to-one mode. The distributed metadata management method and system solve the problem of single-node failures in metadata management and achieves the aim of coincidence among multiple copies.
Owner:INST OF INFORMATION ENG CAS

Page downloading control method and system for IE (Internet Explorer) core browser

The invention provides a page downloading control method and a page downloading control system for an IE (Internet Explorer) core browser. The method provided by the invention comprises the following steps of: starting an IE core browser process and starting a preset downloading process; registering a communication protocol in the IE core browser process and waiting a page downloading request based on a corresponding communication protocol; when the IE core browser process receives the page downloading request, transmitting the page downloading request to the downloading process; acquiring, by the downloading process, file size information corresponding to the page downloading request; when the file size information exceeds a preset file size threshold value, executing downloading operation of a corresponding page by using a multi-thread downloading mode; and returning, by the downloading process, downloading state information to the IE core browser process in a page downloading operation process. Through the method and the system, a page downloading process of the IE core browser can be effectively controlled, so that the efficiency and the stability of page downloading are improved.
Owner:BEIJING QIHOO TECH CO LTD

Device and method for preparing particulate-reinforced aluminum matrix composites by stirring and casting

The invention discloses a device and a method for preparing particulate-reinforced aluminum matrix composites by stirring and casting. The device comprises a lifting mechanism, a resistance furnace, a fixed column, a supporting mechanism, a stirring device, a particulate conveying device, a furnace lid, a feeding hole, a gas inlet tube, a graphite crucible and a stainless steel crucible. The device for preparing particulate-reinforced aluminum matrix composites by stirring and casting can be used for quantitatively conveying and adding reinforced particulates, and realizing gas protection and automatic preparation. The device is delicate in structural design, simple and convenient to operate, high in automation degree and good in stability. By virtue of the gas protection, gas absorption and surface oxidization of a melt in a preparation process based on stirring and casting are reduced; the quantitative conveying and adding of the reinforced particulates are realized by virtue of the particulate conveying device; the quantitative control on a stirring position and a stirring speed is realized by virtue of the lifting device and the stirring device, and thus, the performance and preparation efficiency of a composite material are well improved.
Owner:SOUTH CHINA UNIV OF TECH

Direct drive engaging and disengaging device of washing machine

The invention discloses a direct drive engaging and disengaging device of a washing machine, which comprises a direct drive motor, a vertical split type engaging and disengaging structure and a brake structure, wherein the direct drive motor is arranged at the bottom of an outer barrel and used for directly driving an impeller shaft of an impeller and a dewatering shaft coaxially sleeved outside the impeller shaft for driving a dewatering barrel to rotate; the engaging and disengaging structure is used for singly transmitting the drive of the direct drive motor to the impeller shaft or simultaneously transmitting the drive to the impeller shaft and the dewatering barrel and comprises an engaging and disengaging outer disk, an engaging and disengaging inner sleeve and an engaging and disengaging spring, wherein the engaging and disengaging outer disk is tightly combined with a motor rotor and rotates together with the motor rotor, the engaging and disengaging inner sleeve is sleeved on the dewater barrel, can be used for driving the dewatering shaft to rotate together and can axially slide on the dewatering shaft, and the engaging and disengaging spring is sleeved on the dewatering shaft and used for providing elastic force to ensure that the engaging and disengaging inner sleeve axially slide and is internally engaged and connected with the engaging and disengaging outer disk; and the brake structure is used for separating the engaging and disengaging inner sleeve from the engaging and disengaging outer disk up and down. The device has the advantages of simple structure and low cost and can be used for improving the efficiency of a transmission system and realizing stable engaging and disengaging control.
Owner:HAIER GRP CORP +2

Binary search anti-collision method with unknown label quantity estimation function

InactiveCN101650770ARecognition efficiency is stableImprove efficiency and stabilitySensing record carriersBit-length
The invention discloses a binary search anti-collision method with unknown label quantity estimation function. The method includes that: a reader sends a label identification request, all labels return the whole identification code; estimation circulation is executed, the reader estimates the label quantity according to collision bit quantity returned by a search circulation II and determines request collision bit length of a next search circulation; the search circulation II is executed to obtain request prefix, the request prefix is pressed into a stack; one request prefix is popped out fromthe stack, the search circulation I is executed, if no collision is existed, one label is identified, or two new request prefixes are obtained to be pressed into the stack; and the process is repeatedly executed until the stack is empty and all the labels are identified. The invention utilizes interrelation of label quantity and collision bit quantity returned by the search circulation II to estimate the label quantity and combines the search circulation I and the search circulation II to rapidly identify the labels, the average search times for identification on one label is maintained to be1.26-1.15, so that label identification efficiency is improved.
Owner:SOUTH CHINA UNIV OF TECH

Electric car wireless charging device with multiple parallel connection primary side windings

The invention discloses an electric car wireless charging device with multiple parallel connection primary side windings. The electric car wireless charging device is a wireless electric energy transmission device with one inversion rectifying device corresponding to multiple parallel connection primary side windings on the basis of the magnetic resonance principle and achieves the purpose of carrier current transforming needed in the multiple power source high voltage rectification, inversion and charging processes. The electric car wireless charging device comprises an inverter, a ground system induction coil, carrier current conversion devices, an automobile chassis secondary side winding, a load and a load detection device. The inverter receives electric energy from a power plant, electric energy is transmitted to multiple induction coils connected in parallel through inversion, the load detection device detects the corresponding output car number and the battery load state, a control signal is transmitted, and the output current is adjusted through the carrier current conversion devices installed on each parallel connection primary side and transmitted into the load through the ground system induction coil and the chassis secondary side winding in a resonance mode. Autoregulation of the system can be achieved, the problem that the efficiency is low due to the fact that one primary side of an existing electric car wireless charging system can only correspond to one secondary side is optimized, and the stability and effectiveness of the system are improved.
Owner:NANJING AGRICULTURAL UNIVERSITY

Gas, water and coal separation device of coal-mine gas spray hole

The invention relates to a gas, water and coal separation device of a coal-mine gas spray hole. The gas, water and coal separation device comprises a borehole casing, four ways, a gas pre-extraction pipe, a drill pipe, a drilling machine, a drilling machine support, a seat stand, a coal guide pipe, a coal bunker, a bunker A coal unloading pressure switch, a bunker A movable coal unloading plate, a bunker dividing plate, a bunker A gas extraction and drainage pipe opening valve, a bunker A gas extraction and drainage pipe, a bunker A filter screen, a bunker A coal guide pipe valve, a bunker A coal guide branching pipe, a bunker B coal guide branching pipe, a bunker B coal guide pipe valve, a bunker B filter screen, a bunker B gas extraction and drainage pipe, a bunker B gas extraction and drainage pipe opening valve, a bunker B movable coal unloading plate, a bunker B coal unloading pressure switch, a coal baffle, a bunker A and a bunker B, wherein the bunker is a main separation device consisting of two separation bunkers of which the structures are the same; and the short-time storage and separation of the gas, water and coal can be alternately finished by the two separation bunkers. With adoption of the gas, water and coal separation device, through a manner of the double bunkers, the efficiency and stability in discharging and spraying matters can be greatly improved and the gas, coal and water can be uninterruptedly separated.
Owner:CHINA UNIV OF MINING & TECH +1

Quick lifting mechanism applied to bridge construction

The invention discloses a quick lifting mechanism applied to bridge construction. The quick lifting mechanism comprises a movable rack, a motor crawler belt assembly and a hanging basket. The A trussis fixedly mounted on the top of the movable rack. The motor crawler belt assembly is fixedly mounted on the outer wall of the top of the movable rack. The outer wall of the end of the movable rack ishinged to the outer wall of the middle portion of a supporting frame. The upper half portion of the supporting frame is internally provided with sliding grooves. Wire ropes are wound on the outer walls of winding wheels and are attached to the outer walls of guide wheels. The hanging basket is fixed to the lower ends of the wire ropes. The edges of the ends of the movable rack are fixedly connected with locating tubes. The quick lifting mechanism applied to bridge construction facilitates position movement and change and positioning operation. The positioning and installation stability and efficiency of the mechanism are improved. Meanwhile, the quick lifting mechanism can be protected against falling in the using process. Potential construction safety hazards of the quick lifting mechanism during lifting motion are effectively reduced.
Owner:吕友飞

Circulation heating device and flowing path control method for heat collecting liquid

The invention relates to a circulation heating device and a flowing path control method for heat collecting liquid. The device comprises a heating loop and a solar heat collector, wherein the heating loop comprises a heat storing water tank, a heating tail end and a circulating water pump; the solar heat collector comprises a shell and a heat collecting part arranged in the shell; the heat collecting part comprises an inlet liquid dividing pipe, an outlet liquid collecting pipe and a plurality of heat collecting units arranged between the inlet liquid dividing pipe and the outlet liquid collecting pipe in parallel; each heat collecting unit comprises a compound parabolic concentrator and a capillary pipe heat absorber arranged on the compound parabolic concentrator in a spanning manner; and the heat collecting liquid forms a flowing path among the inlet liquid dividing pipe, the outlet liquid collecting pipe and at least part of the capillary pipe heat absorbers, and a heat exchanger in a heat accumulator enables the flowing path to form a closed loop. The number of the capillary pipe heat absorbers connected to the flowing path is adjustable. The heating device can meet heating requirements by adjusting the flowing path of the heat collecting liquid.
Owner:BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products